gingivaPronunciation: /ˈdʒɪndʒɪvə, dʒɪnˈdʒʌɪvə/ (also plural gingivae /dʒɪnˈdʒʌɪviː/)Definition of gingiva noun [treated as singular or plural] Medicine the gums: brushing should focus on the junction between the gingiva and teethOrigin: late 17th century: Latingingiva in other Oxford dictionaries Definition of gingiva in the US English dictionary